# Souce bash specific set up,
[ -f ~/.bashrc ] && . ~/.bashrc

# Environment.
export EDITOR="nano"
export LANG="en_GB.UTF-8"
export LC_COLLATE="POSIX"	# 'C' causes issues with some applications
# export LC_CTYPE="POSIX"	# Not sure why I set this in the first place...
export LESS="-Mi -PM?f%F:stdin.    --    Page %dt of %D    --    %lt/%L (%Pt\%)$"
export MANPAGER="less -Mis -PM'Page %dt$'"
export PAGER="less"
export PATH="/usr/local/sbin:/usr/sbin:/opt/sbin:/sbin:$PATH"
export VISUAL="$EDITOR"
[ -x /usr/bin/lesspipe ] && eval "$(SHELL=/bin/sh lesspipe)"

# Add bin directories to PATH.
[ -d ~/files/bin ] && export PATH="~/files/bin:$PATH"
[ -d ~/bin ] && export PATH="~/bin:$PATH"

# Platform specific set up.
_PLATFORM="$(uname -s)"
if [ "$_PLATFORM" = "Linux" ]; then
  # Environment,
  export I_WANT_A_BROKEN_PS=1
  hash dircolors >/dev/null 2>&1 && eval "$(dircolors -b ~/.dir_colors)"
elif [ "$_PLATFORM" = "Darwin" ]; then
  # Environment.
  export LSCOLORS="ExGxdxdxCxDxDxbcacbeae"
  export MANPATH="/opt/local/share/man:$MANPATH"
  export PATH="/opt/local/bin:/opt/local/sbin:$PATH"
else
  echo "${BASH_SOURCE##*/}: unsupported platform: $_PLATFORM" >&2
fi
unset _PLATFORM

# SSH agent.
hash ssh-add ssh-agent >/dev/null 2>&1 && {
  if [ ! -z "$SSH_AGENT_PID" ] && [ ! -z "$SSH_AUTH_SOCK" ]; then
    echo
    echo "Connected to forwarded ssh-agent at PID $SSH_AGENT_PID."
  elif [ -z "$SSH_AGENT_PID" ] || [ -z "$SSH_AUTH_SOCK" ]; then
    echo
    echo "Problem connecting to forwarded ssh-agent!"
    false
  else
    . ~/.ssh/agent 2>/dev/null
    if [ -z "$SSH_AGENT_PID" ] || ! pgrep -u "$USER" -f "$(hash -t ssh-agent)" | grep "^$SSH_AGENT_PID$" >/dev/null; then
      if ssh-agent -s | sed -e '/^echo/ d' >~/.ssh/agent; then
        . ~/.ssh/agent
        if ! ssh-add -l >/dev/null 2>&1; then
          alias ssh='ssh-add -l >/dev/null 2>&1 && unalias ssh || { ssh-add && unalias ssh; }; ssh'
        fi
        echo
        echo "Started new local ssh-agent at PID $SSH_AGENT_PID."
      else
        echo
        echo "Failed to start local ssh-agent!"
        false
      fi
    else
      echo
      echo "Connected to local ssh-agent at PID $SSH_AGENT_PID."
    fi
  fi
}

# Screen.
hash screen >/dev/null 2>&1 && {
  if [ ! -e ~/.hushlogin ]; then
    if [ ! -z "$STY" ]; then
      echo
      echo "Screen $STY, window $WINDOW."
    else
      _SCREENS="$( screen -ls | egrep '[[:alpha:]]' | egrep -v '^[[:digit:]]+ Socket(s)?' )"
      if [ -n "$_SCREENS" ]; then
        echo
        echo "$_SCREENS"
      else
        echo
        echo "No screens."
      fi
      unset _SCREENS
    fi
  fi
}

# Mail check.
[ ! -z "$SSH_CONNECTION" ] && {
  if [ -s /var/spool/mail/$USER ]; then
    if [ -N /var/spool/mail/$USER ]; then
      echo
      echo "You have new mail."
    else
      echo
      echo "You have mail."
    fi
  else
#    echo
#    echo "No mail."
  fi
}

echo